Browsing by Author "Girma, Binyam"

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    Mid-Upper Arm Circumference as a Screening tool for indentifying over weight and obesity among adolescences in Addis Abeba, Ethiopia.
    (Addis Abeba University, 2019-10) Girma, Binyam; Dr.Hagos, Seifu(BSc., MSc, MPH, PhD); Haile, Demewoz(BSc., MSc, PhD candidate)
    Background- Adolescent overweight and obesity is a global public health problem and associated with increased risk of metabolic syndrome. Recently, mid-upper arm circumference has been suggested as a screening tool for overweight and obesity among school age children and early adolescent. However, little is known about the potential use of mid-upper arm circumference in late adolescents (15-19 years). Objective- The aim of the study was to evaluate the ability of mid-upper arm circumference to correctly identify BMI-for-age z-score defined overweight and obesity among adolescents in selected high schools of Addis Ababa, Ethiopia, 2019. Methods- A school-based cross-sectional study was conducted among 851 late adolescents in Addis Ababa. A stratified multi-stage sampling procedure was followed. A pre-tested interviewer-administered questionnaire was used. Anthropometric measurements including weight, height, and mid-upper arm circumference were measured. Receiver operating characteristic curve analysis was done to determine the ability of MUAC to detect overweight and obesity. Sensitivity, specificity, predictive values and likelihood ratio of MUAC were calculated for the optimal cutoff points. Result - MUAC had strong positive correlation with BMI-for-age z-score (r = 0.84). The diagnostic performance of MUAC as assessed by area under the curve (AUC) for identifying overweight and obesity was 0.96 for both genders. The optimal mid upper arm circumference cut off point was ≥ 27.9 cm with sensitivity of 90.28%, specificity of 90.71%, positive likelihood ratio of 9.72 and negative likelihood ratio of 0.11 for girls. Similarly, for boys optimal mid upper arm circumference cut off point was ≥ 27.75 cm with sensitivity of 94.1%, specificity of 89.1%, positive likelihood ratio of 8.7 and negative likelihood ratio of 0.07. Conclusion - This study provide evidence that MUAC have high specificity and sensitivity to identify overweight/obese among late adolescences as evaluated against body mass index for age z-score. The optimal mid upper arm circumference cut off point for girls was ≥ 27.9 cm and for boys was ≥ 27.75 cm. MUAC have potential for screening and surveillance applications as simple and widely available indicator of overweight/obesity in late adolescents.